DataVXACS Applied Materials & InterfacesPaper
journal article·2020-09-02Open access

Laser-Deposited Carbon Aerogel Derived from Graphene Oxide Enables NO2-Selective Parts-per-Billion Sensing

Sebastian Nufer, Peter J. Lynch, Matthew J. Large, Sean P. Ogilvie, Jonathan P. Salvage, Mario Pelaez-Fernandez, Thomas Waters, Izabela Jurewicz, Edgar Muñoz, Raul Arenal, Ana M. Benito, Wolfgang K. Maser, Nikos Tagmatarchis, Christopher P. Ewels, Adam Brunton, Alan B. Dalton

ACS Applied Materials & Interfaces· Volume 12· Issue 35
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Source abstract

Abstract

Laser-deposited carbon aerogel is a low-density porous network of carbon clusters synthesized using a laser process. A one-step synthesis, involving deposition and annealing, results in the formation of a thin porous conductive film which can be applied as a chemiresistor. This material is sensitive to NO2 compared to ammonia and other volatile organic compounds and is able to detect ultra-low concentrations down to at least 10 parts-per-billion. The sensing mechanism, based on the solubility of NO2 in the water layer adsorbed on the aerogel, increases the usability of the sensor in practically relevant ambient environments. A heating step, achieved in tandem with a microheater, allows the recovery to the baseline, making it operable in real world environments. This, in combination with its low cost and scalable production, makes it promising for Internet-of-Things air quality monitoring.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsMaterials processing

OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Sensor and Energy Harvesting Materials · Air Quality Monitoring and Forecasting

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

M-Solv Ltd, Oxonian Park, Langford Locks, Kidlington, Oxford OX5 1FP, U.K.

Department of Physics and Astronomy, University of Sussex, Brighton BN1 9RH, U.K.

School of Pharmacy and Biomolecular Science, University of Brighton, Brighton BN2 4GJ, U.K.

Laboratorio de Microscopias Avanzadas (LMA), Instituto de Nanociencia de Aragon, Universidad de Zaragoza, Zaragoza 50018, Spain

Department of Physics, University of Surrey, Guildford GU2 7XH, U.K.

Instituto de Carboquímica ICB−CSIC, Zaragoza 50018, Spain

Fundacion ARAID, Zaragoza 50018, Spain

Instituto de Ciencias de Materiales de Aragon, CSIC—Universidad de Zaragoza, Zaragoza 50009, Spain

Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, Athens 11635, Greece

Institute des Matériaux Jean Rouxel (IMN), CNRS UMR6502/Université de Nantes, Nantes 44322, France

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